I think the share button feature might have been intended to avoid faceoff retractions like the final fantasy ones, and potentially make personnel like RL redundant. It will certainly make faceoffs far more interesting, when any gamer can make and share a video in 5mins flat to prove a point on a forum.

But it will also make DFs job easier for analysing a console with the share feature. Not to mention it is an excellent feature for software developer QA teams using retail decks, and it will allow for quality bug reporting by the gaming public too. Providing the ability to send a video of the bug with a description gives the developers much more powerful feedback to be able to detect the source of bugs,.